supply?

tsaw2000

i'm starting to get a little worried about supply. in the last month or so ds has gone from 6 feedings to 5 & on some days only 4. he eats 2ish tbsp. oatmeal & 1/2 jar of fruit for breakfast & same amount of oatmeal w/veggie for dinner. he sttn & after his 1st feeding, one side, i pump the other side & had been getting 6-7 oz. but lately only 4.5-5oz. after 9+hrs. so does this sound normal?